20404680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7393}}^1$

素因数の和:7430

約数の個数: 64

約数和(自身を含む): 63884160

約数和(自身を除く): 43479480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 7393, 14786, 22179, 29572, 36965, 44358, 59144, 73930, 88716, 110895, 147860, 170039, 177432, 221790, 295720, 340078, 443580, 510117, 680156, 850195, 887160, 1020234, 1360312, 1700390, 2040468, 2550585, 3400780, 4080936, 5101170, 6801560, 10202340, 20404680]

約数ペア:

[(1, 20404680), (2, 10202340), (3, 6801560), (4, 5101170), (5, 4080936), (6, 3400780), (8, 2550585), (10, 2040468), (12, 1700390), (15, 1360312), (20, 1020234), (23, 887160), (24, 850195), (30, 680156), (40, 510117), (46, 443580), (60, 340078), (69, 295720), (92, 221790), (115, 177432), (120, 170039), (138, 147860), (184, 110895), (230, 88716), (276, 73930), (345, 59144), (460, 44358), (552, 36965), (690, 29572), (920, 22179), (1380, 14786), (2760, 7393)]